#include <REGX52.H>
#include "Timer0.h"
#include "Key.h"
#include <INTRINS.H>


unsigned char KeyNum;
unsigned char LEDMode;

void main()
{
	P2 = 0xFE;
	Timer0Init();
	while(1)
	{
		KeyNum = Key();
		if(KeyNum)
		{
			if(KeyNum==1)
			{
				LEDMode++;
				if(LEDMode >= 2)LEDMode = 0;
			}
		}
	}
}


void Timer0_Routine() interrupt 1 //中断函数
{
	static unsigned int T0Count;
	TL0 = 0x18;				//设置定时初始值
	TH0 = 0xFC;				//设置定时初始值
	T0Count++;
	if(T0Count >= 500)
	{
		T0Count = 0;
		if(LEDMode == 0)
		{
			P2 = _crol_(P2,1);
		}
		if(LEDMode == 1)
		{
			P2 = _cror_(P2,1);
		}
	}
}